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公开(公告)号：US09780898B2
公开(公告)日：2017-10-03
申请号：US14427210
申请日：2013-01-10
发明人： Wei Liang , Shuai Liu , Xiaoling Zhang , Yutuo Yang , Haibin Yu
CPC分类号： H04J3/1694 , H04B7/2656 , H04L5/0055 , H04W16/18 , H04W40/244 , H04W48/08 , H04W72/0446
摘要： The present invention relates to a TDMA access method and device based on multiple access points. According to the problems that the existing method cannot simultaneously satisfy the demands of timeliness and reliability in actual industrial application and has low resource utilization rate, the present invention takes full consideration of the transmission characteristics and industrial automation application characteristics of wireless networks, and provides a TDMA access method and device based on multiple access points. The main ideas of the method in the present invention are: the multi-access point redundant communication manner is adopted to improve system reliability, beacon frames of multiple access points are utilized to perform time synchronization so as to improve synchronization precision, confirmation messages are fed back with regard to reliable access points to reduce the number of retransmissions, and a modularized multi-access point device design method is adopted to lower the difficulties of device maintenance and management.
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公开(公告)号：US20160292571A1
公开(公告)日：2016-10-06
申请号：US14778406
申请日：2013-12-20
摘要： The present invention relates to the technical field of terminal devices of the Internet of Things, more specifically to a semantic method for terminal devices of the Internet of Things capable of analyzing the application characteristics of terminal devices of the Internet of Things, setting down the rules for building ontology base; analyzing and building initial ontology base by using the ontology base building tool; pre-processing information from network and sensors; collecting information uploaded by sensors, updating the initial ontology base, and expanding the ontology base by collecting information searched by network. The method establishes program plan by object-oriented mode, analyzes implementing results by using existing test data or simulated data, and realizes domain updating and expansion of sensor ontology according to specific applications. The whole development and evolution of sensor ontology is increasing gradually in a spiral form.
摘要翻译： 本发明涉及物联网终端设备的技术领域，更具体地涉及物联网终端设备的语义方法，能够分析物联网终端设备的应用特性，设定规则 用于构建本体基础; 通过使用本体基础构建工具分析和构建初始本体库; 来自网络和传感器的预处理信息; 收集传感器上传的信息，更新初始本体基础，并通过收集网络搜索的信息来扩展本体基础。 该方法通过面向对象模式建立程序计划，通过使用现有测试数据或模拟数据分析实现结果，并根据具体应用实现传感器本体的域更新和扩展。 传感器本体的整体发展与演变逐渐呈螺旋形增长。
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公开(公告)号：US09979563B2
公开(公告)日：2018-05-22
申请号：US14898511
申请日：2014-10-22
发明人： Haibin Yu , Wei Liang , Xiaoling Zhang , Chaofan Ma
CPC分类号： H04L12/6418 , H04L2012/6459 , H04W4/70 , H04W52/0212 , Y02D70/00 , Y02D70/1222 , Y02D70/146
摘要： The present invention relates to wireless network technologies, and particularly to a chain-type wireless sensor network-oriented hybrid media access control (MAC) method. The present invention fully considers features of a chained or linear topology of a wireless sensor network applied in power transmission line monitoring and the like, adopts different access policies at different periods of the network, and proposes a method of time division access control Pipelined TDMA during busy periods and contention access control S-XMAC during idle periods. During busy periods, a pipelined scheduling transmission method is used to avoid the problem of hidden terminals so as to improve transmission reliability and resource utilization. During idle periods, different MAC parameters are set for cluster head members and ordinary cluster members, so that the cluster head members can respond to requests in a more timely manner, and meanwhile, the ordinary cluster members save energy as much as possible, thereby meeting requirements for network real-time quality of the application system while saving energy of the network.
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公开(公告)号：US09599699B2
公开(公告)日：2017-03-21
申请号：US14909244
申请日：2014-08-27
发明人： Peng Zeng , Jinchao Xiao , Jie He , Haibin Yu
CPC分类号： G01S5/14 , G01S1/042 , G01S1/08 , G01S5/021 , G01S5/0226 , G01S5/0252 , G01S11/02 , G01S11/06 , H04B1/713
摘要： An RSSI positioning method based on frequency-hopping spread spectrum technology, comprising: calibration stage: measuring the RSSI values of a plurality of channels at fixed points, and recording and calculating the ranging parameters in an RSSI ranging model; system preparation: deploying a positioning anchor node, and realizing synchronization between a target node and the anchor node; conducting communication on the target node by respectively utilizing a plurality of channels to obtain the RSSI values; signal processing stage: processing the RSSI into signal strength amplitude and performing optimization; and positioning stage: calculating a distance and the target node position on a positioning server according to each of the signal strength. The present invention solves the problem that low RSSI positioning precision cannot satisfy the actual requirements because a traditional RSSI positioning method is limited to factors such as multipath signal transmission, co-channel interference, obstacle interference and low coordinate calculation precision of a trilateration method.
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15.发明申请RSSI POSITIONING METHOD BASED ON FREQUENCY-HOPPING SPREAD SPECTRUM TECHNOLOGY 有权基于频率偏移频谱技术的RSSI定位方法公开(公告)号：US20160187460A1
公开(公告)日：2016-06-30
申请号：US14909244
申请日：2014-08-27
发明人： Peng ZENG , Jinchao XIAO , Jie HE , Haibin YU
CPC分类号： G01S5/14 , G01S1/042 , G01S1/08 , G01S5/021 , G01S5/0226 , G01S5/0252 , G01S11/02 , G01S11/06 , H04B1/713
摘要： An RSSI positioning method based on frequency-hopping spread spectrum technology, comprising: calibration stage: measuring the RSSI values of a plurality of channels at fixed points, and recording and calculating the ranging parameters in an RSSI ranging model; system preparation: deploying a positioning anchor node, and realizing synchronization between a target node and the anchor node; conducting communication on the target node by respectively utilizing a plurality of channels to obtain the RSSI values; signal processing stage: processing the RSSI into signal strength amplitude and performing optimization; and positioning stage: calculating a distance and the target node position on a positioning server according to each of the signal strength. The present invention solves the problem that low RSSI positioning precision cannot satisfy the actual requirements because a traditional RSSI positioning method is limited to factors such as multipath signal transmission, co-channel interference, obstacle interference and low coordinate calculation precision of a trilateration method.
摘要翻译： 一种基于跳频扩频技术的RSSI定位方法，包括：校准阶段：在固定点测量多个信道的RSSI值，并记录和计算RSSI测距模型中的测距参数; 系统准备：部署定位锚节点，实现目标节点与锚节点之间的同步; 通过分别利用多个信道来在目标节点上进行通信以获得RSSI值; 信号处理阶段：将RSSI处理成信号强度幅度并进行优化; 和定位阶段：根据每个信号强度计算定位服务器上的距离和目标节点位置。 本发明解决了低RSSI定位精度不能满足实际要求的问题，因为传统的RSSI定位方法被限制在诸如多径信号传输，同信道干扰，障碍物干扰和三坐标方法的低坐标计算精度等因素。
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16.发明申请CHAIN-TYPE WIRELESS SENSOR NETWORK-ORIENTED HYBRID MEDIA ACCESS CONTROL METHOD 有权链式无线传感器网络化混合媒体访问控制方法公开(公告)号：US20160134436A1
公开(公告)日：2016-05-12
申请号：US14898511
申请日：2014-10-22
发明人： Haibin YU , Wei LIANG , Xiaoling ZHANG , Chaofan MA
CPC分类号： H04L12/6418 , H04L2012/6459 , H04W4/70 , H04W52/0212 , Y02D70/00 , Y02D70/1222 , Y02D70/146
摘要： The present invention relates to wireless network technologies, and particularly to a chain-type wireless sensor network-oriented hybrid media access control (MAC) method. The present invention fully considers features of a chained or linear topology of a wireless sensor network applied in power transmission line monitoring and the like, adopts different access policies at different periods of the network, and proposes a method of time division access control Pipelined TDMA during busy periods and contention access control S-XMAC during idle periods. During busy periods, a pipelined scheduling transmission method is used to avoid the problem of hidden terminals so as to improve transmission reliability and resource utilization. During idle periods, different MAC parameters are set for cluster head members and ordinary cluster members, so that the cluster head members can respond to requests in a more timely manner, and meanwhile, the ordinary cluster members save energy as much as possible, thereby meeting requirements for network real-time quality of the application system while saving energy of the network.
摘要翻译： 本发明涉及无线网络技术，特别涉及链式无线传感器面向网络的混合媒体访问控制（MAC）方法。 本发明充分考虑了在输电线路监控等中应用的无线传感器网络的链路或线性拓扑结构的特征，在网络的不同时段采用不同的接入策略，提出了一种时分多址接入控制流水线方法 忙碌期间和争用访问控制S-XMAC在空闲期间。 在忙碌期间，采用流水线调度传输方式避免隐藏终端的问题，提高传输可靠性和资源利用率。 在空闲期间，为集群头部成员和普通集群成员设置不同的MAC参数，使得集群头部成员可以更及时地响应请求，同时普通的集群成员能够尽可能地节约能源，从而达到 要求网络实时质量的应用系统，同时节省网络能源。
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公开(公告)号：US20160072892A1
公开(公告)日：2016-03-10
申请号：US14778354
申请日：2013-12-19
IPC分类号： H04L29/08
摘要： The present invention relates to the field of architecture of Internet of Things, specifically to a semantics-based architectural model of Internet of Things. The present invention puts forward the architecture of the Internet of Things based on the study of semantic Web, sensor network, sensor Web, wherein the architecture is divided into 7 layers: physical layer, perception layer, gateway layer, data layer, semantic layer, service layer and application layer. By means of semantic processing of sensor data and building of sensor ontology, the architecture is capable of realizing automatic discovery of heterogeneous resources, enhancing the expression ability of data, achieving effective sharing, reuse, integration, and access to data, improveing interoperability of resources and accomplishing intellectualized service.
摘要翻译： 本发明涉及物联网的架构领域，特别涉及物联网的基于语义的建筑模型。 本发明基于语义Web，传感器网络，传感器Web的研究，提出了物联网的架构，其中架构分为物理层，知觉层，网关层，数据层，语义层， 服务层和应用层。 通过传感器数据的语义处理和传感器本体的构建，架构能够实现异构资源的自动发现，增强数据的表达能力，实现有效的共享，重用，集成和访问数据，提高资源的互操作性 实现智能化服务。
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